// var useragent = navigator.userAgent;
// if (useragent.match(/MicroMessenger/i) != 'MicroMessenger') {
//     alert('已禁止本次访问：您必须使用微信内置浏览器访问本页面！');
//     var opened = window.open('about:blank', '_self');
//     opened.opener = null;
// }